Marker-related line properties in annotations

Question

LR 2019-6-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/467913-marker-related-line-properties-in-annotations

回答： LR 2019-6-19

采纳的回答： LR

Hi folks,

Simple problem here: I am creating a line object outside a figure's axes using the annotation function.

I need the line object to exhibit circles at each data point, just like the following would do:

line([x1 x2],[y1 y2],'color','k','marker','o')

This works because line objects do have a marker property (and related properties like markersize, markeredgecolor, markerfacecolor)

However, when creating the same line object with the annotations function, like this:

annotation('line',phi1([x1 x2]),phi2([y1 y2]),'color','k','marker','o')

(where phi1 and phi2 are two functions that transform the x and y coordinates to fit in the axes of the figure)

I get the following error message:

---------------

Error using matlab.graphics.shape.Line/set

There is no Marker property on the Line class.

---------------

What is going on? I tried fiddling around with the handles to the annotation, with no success.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

LR 2019-6-19

编辑：LR 2019-6-19

The documentation of annotation does not mention the specific properties that can be modified for line objects, however, it does specify that the annotation function can be used as follows:

annotation(...,'PropertyName','PropertyValue',...)

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

LR 2019-6-19

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/467913-marker-related-line-properties-in-annotations#answer_379957

It appears that the annotation function does not support the marker-related properties for the Line class, or the curvature property for the Rectangle class, etc.

One workaround to display objects outside the axes and modify their marker properties is to set the 'Clipping' property of the object to 'off':

line([x1 x2],[y1 y2],'color','k','marker','o','Clipping','off')

where x1, x2, y1, y2 are the coordinates of the line object given in the current axis.